VEVOR - Dissolved Oxygen Meter, 0.0-20.0 mg/L Measurement Range, Portable Dissolved Oxygen Tester Kit with 13.1 ft Electrode - Black

Equipped with automatic temperature compensation and manual pressure and salinity adjustment, this DO meter ensures accurate readings every time. The IP67 waterproof design ensures stable performance even in damp environments, while the clear LCD screen provides easy data reading.